Coal-mining machine.



I. R UDAI & A. SZARKA. COAL mums meme.

Patented Aug. 6, 1918.

2 SHEETS-SHEET I APPLICATIONHLED IIIAY 8. 191B.

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l. RUDM & It. SZARKA.

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APPLICATION HLED HAVE. 918.

1,274,939. Patented Aug. 6, 1918.

2 SHEETS-SHEET 2.

WITH I QEaYWJ r w IMRIE RUDAI AND AUGUST SZARKA, 0F VESTABURG, PENNSYLVANIA;

COAL-MINING MACHINE.

Specification of Letters Patent.

Patented Aug. 6, 1918.

Application filed May 6, 1918. Serial No. 232,923.

To all whom it may concern:

Be it known that we, IMnm RUDAI and Ann-oer Smmm, subjects of the King of l-lungary, residing at Vestaburg, in the county of Washington and State of Pennsylvania, have invented new and useful 1mprovements in Coal-Mining Machines, of which the'following is a specification.

()ur invention relates to mining machines, and more particularly to apparatus by which such machines may be moved from place to place by means of the motive power for effecting the miningoperations'.

Our object is to provide improvedmeans for'using the mining machine motor instead of hand levers to move the mining machine toand from'a truck or to various positiofisonthe mine floor preliminarily t0 mining'operations"- Referring tothe accompanying drawings, Figure liis a'plan view of a coal mining machinewith our invention embodied therein; Fig.2, a side elevation of Fig. 1; Fig. 3, an enlarged side'view of the gearing shown on Fi 2; Fig. 4, a horizontal section onthe line I IV of Fig. 2 with the mining machine'carriage and cutter omitted; Fig. 5, an end View of the cable drum; Fig. 6, a fra mentary view, showing the upper part of ig. 5 enlar ed and parts in a different position; Fig. ,1. central vertical section through Fig. 5; Fig. 8, a detail showing a portion of the gearing for connecting the motor to the 'means for moving the machine; Fig. 9 a section on the line IX- IX, Fig. 6; and Fig. 10, a view of a hook for the drum cable.

On the drawings, 1 represents the shoes, 2 the side bars, and 3 the cross bars of a mining machine frame A; In this frame is the movable cutter' frame 4 provided with the endless chain 5 bearing the cutters 6. This'chain is driven by the motor 7 which is mounted to travel back and forth upon the machine frame A. The mechanism so far described and that now about to be described forfmov'ing the motor, its carriage and the cutter "frame'back and forth are all'old and need not be fully described. The details may be seen in 'Dierdorfi"s Patent, No. 684,356, dated October 8, 1901.

'8 designates the armature shaft of the motor 7 and drives the spur gear wheel 9 on the shaft 10. This shaft by suitable gearing drives the worm 11 in one direction. and the motor by suitable gearing drives the worm wheel [2 in the opposite direction. The worms gear with the worm wheels 13 and H, respectively, which run loose on the shaft 15. The shaft 15 has fixed thereon at its ends the spur pinions 16 and 17 which gear with the respective racks 18 and 19 on the lower faces of the-topplates 20 of the frame. 21 is a clutch on the shaft 15 which may be thrown in opposite ways from its central position by the lever 22 so as to cause the shaft 15 to drive the worm 13 or the worm 14. When the clutch is in the central position it is disconnected from both worm wheels. Thus, when the motor is running, the carriage and cutter frame may be moved forward on the frame A. to make a cut in the coal and then backward out of the kerf, or the motor may run idle without operating the cutter carria e.

Gur invention may be applied to any other type of coal mining machine as the details thereof form no part of the same. In the frame A we mount the spur gear 23, which may be moved up into engagement with the gear wheel 9 when the motor carriage is in its rear position, as shown on Figs. 2 and 3. The spur pinion 24 integral with the gear 23 meshes with the gear 25, which meshes with the gear 26, loose on the shaft 27, extending entirely across the frame.

The end of the shaft 27 opposite the one bearing the gear 26has the pinion '28 fixed thereon and meshing with the gear 29 on the shaft 30, which also has fixed thereon the pinion 31 meshing with the internal gear 32 on the wheel 33 fixed on the shaft 34. The shaft 34 has the rope drum 35 loosely mounted thereon and having its inner face provided with peripheral teeth 36, engageable by the radially-slidable toothed segment 37 carried by the outer face of the wheel 33. The segment is slidable in the slot 38 in the wheel 33 and when pushed in radially in the slot, the arc-shaped key or slide 39 uided in a slot between the wheel 33 and 51s strip 40 thereon is moved between the outer end of the segment and the strip. The key and the strip 40 have a tongue and groove connection 41, as shown on Fig. 9 to prevent the lateral movement of the key. When the key is moved back to allow the segment 37 to be moved out- \vardly out of mesh with the teeth 36, its I'orvvard end engages in a notch 42 in the adjacent. end of the segment to prevent the accidental inward movement of the segment, the he being pushed toward the notch hy the spring 13 engaging the other end of the key.

The shaft 27 is provided with the cluteh l-l operated by the lever 45 to disconnect the shaft 27 from its driving gear 20 and stop the rotation of the drum 35.

lhe gears and 24 are mounted tixedly on the shaft 46 provided with the pnnons 4:7 engageahle with the racks 48 In one side of the vertical guides 49 between which the pinions 47 are moved up and down and by which the gears 23 and 24 are held from lateral movement. W hen the shaft -10 is at the bottom of the guides, the gem-s9 and 23 are disengaged ,By applying a wrench to the squared end of the shaft 46 the latter is caused to move up hetweenits guides \Vhen the shaft is near its upper position, the slides 50 and 51 are m'ovedheneath the ends of the shaft and wedge them upwardly by an incline 52 on the upper edge and cause the gears 9 and 25 toengage each other. These slides hold the ,gears in engagement, with the piniohs, {tout of mes h with the ncks 48. The slides are operated by the.

lever 53 l'iaving its ends pivoted to the slides and its middle to the fixed support 5t on the frame. 55 is a handle for operating theslides. .r i

Oh the rear end of the frame are pivoted the two sheaves 56 and 57. The real; end of the frame carries also the transverse bar 56 which carries the pin 57 extendin through the sheave. 58 lying, between the shaves 56 and 57. Sheaves 59 and fill connected to hars 60 may he 'hooked over the frame or other objects. (51 is a rope on the ma hen it desired to move the e tire mining machine on its shoes 1 over the oor of the mine or other surface, the motor carriage is moved to the iear vviththe gear 9 over the gear The clutch 21 is moved to its central position, and the segment 37 is interlocked with the to 36, he rope 6 1 is passed over certain s eaves as shown and its end secured to any convenient stationary object located so as to ul l the machine in the desired direction. I hegear 23, is moved into mesh with the gear 9 and the clutch ll into engagement w th the gear 26, whereupon, the motor I having been started, the entire machine will he moved on its shoes. 'hen the rope is passed over thesheaves 56 and 58, asin Fig ft, the machinewil be moved to the right. The rope may be passed over the sheaves 56 and 57. to move it to the left, and over the sheave 59 to move it forwardly. The rope may be passed over the sheave- 59' directly from the drum to move the machine to the right. When it is desired to wind up the rope oh the drum or to pay out the rope, the segment Iii is moved out of engagement with the teeth ,lti, where upon the drum ran lH' rotated idly on the shaft 34.

A double-ended hook (32 may have one hook connected to a liar or jnth ea, the rope til running through the other end as shown on Fig. it) to cause the machine to he pulled in the desired direction. 'lhe hook o2 may he hooked over any convenient object or be used like the sheaves rm and 511' and their liar-s60.

After the machine has lieeu moved into position for cutting coal, the slides 51 are drawn from under the shaft Jti, and the gear 23 drops a way from the gear 9, so that the motor carriage may move forwardly without operating the gears for moving the frame.

We claim* 1. In a mining machine, a frame, a ropedrum thereon, a cuttei eiirriagc on the frame, a inoto'r on the carriage for driving the same and the cutter, a gear on the earrihge driven by the motor and gearing on the frame for driving the ropedrum, one of the gears of said gearingheiug movable into mesh with the gear on the carriage.

In a mining machine, afr'anie, a roped'ruin thereoma cutter-carriage'on thefranie, a niotor onthe carriage for driving the same and the cutter, a gear on the carriage driven by the motor, earing on the frame for driving the rope-(lifum, one of the gears of said gearing being movable into, ineslrwith the gear on theearriage, a shaft to which the movable gear is secured, pinions on the ends the shaft, guides leading toward the car'- riage gear and having racks for meshing with the pinions, whereby thesliaft may he caiised to move inthe guides toward the ca?- riage gear and means for maintaining the sa d gears in mesh. l I h 3. In a mining machine, a frame, a ropedrum thereon, a ciitt'ercai'ria g'e on the frame, a motor on the carriage fordriving the same and the cutteiga gear on the carriag driven by the motor gearing on the frame for driving the rope-drum, one of the gears ofisaid gearing being movable into mesh with the gear on the carriage, and a clutch between the said movableg ear and the rope-drum. H v

4. Ina mining machine, a frame, a ropedrum thereon, a cutter-carriage on the frame, a motor on the carriage for driving the same and the cutter, gearing on the frame for driving the rope-drum, and means for connecting the motor to the said gearing, the said gearing on the frame including, a wheel having a toothedsegment movab e into loclging engagement with the rope-drum for driving the latter.

5. In a mining machine, a frame, a ropedrum thereon, a cutter-carria e on the frame, a motor on the carriage or driving the same and the cutter, gearing on the frame for driving the rope-drum, and means for connecting the motor to the said gearing, the said gearing on the frame inclndin a wheel having a toothed segment mova 1e into locking engagement with the rope-drum for driving the latter, in combination with means for holding the segment in such engagement.

6. In a mining machine, a frame, a ropedrnm thereon, a cutter-carriage on the frame, a motor on the carriage for driving the same and the cutter, gearing on the frame for drivin the rope-drum, and means for connecting t e motor to the said gearing, the said gearing on the frame including a wheel having a toothed segment movable into locking engagement with the rope-drum for driving the latter, in combination with a key movable against the segment to prevent its movement away from t e drum.

7. In a mining machine, a frame, a ropedrum thereon, a cntter-carria e on the frame, a motor on the carriage or driving the same and the cutter, gearing on the frame for driving the rope-drum, and means for connecting the motor to the said gearing, the said gearing on the frame includin a wheel having a toothed segment mova le into locking engagement with the rope-drum for driving the latter, in combination with a key movable against the segment to prevent its movement away from the drum and to prevent its movement toward the drum when disengaged therefrom.

Signed at Pittsburgh, Pa., this 3rd day of May, A. D. 1918.

IMRIE RUDAI. AUGUST SZARKA.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. 0." 

